Buick Regal: Hill Start Assist (HSA) - Brakes - Driving and Operating - Buick Regal Owners ManualBuick Regal: Hill Start Assist (HSA)

Some vehicles have a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearward, during vehicle drive off. After the driver completely stops and holds the vehicle in a complete standstill on a grade, HSA will be automatically activated. During the transition period between when the driver releases the brake pedal and starts to accelerate to drive off on a grade, HSA holds the braking pressure to ensure that there is no rolling. The brakes will automatically release when the accelerator pedal is applied within the two-second window. It will not activate if the vehicle is in a drive gear and facing downhill or if the vehicle is facing uphill and in R (Reverse).

    Brake Assist
    This vehicle has a brake assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydraulic brake co ...

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    Warning and indicator lights
    Several of the warning and indicator lights illuminate momentarily and then go out when the ignition switch is initially turned to the “ON” position. This permits checking the operation of the ...

    Replacement method
    Remove the air conditioning filter and replace it with a new one. The “↑UP” marks shown on the filter should be pointing up. ...

    Installing child restraints
    Follow the child restraint system manufacturer's instructions. Firmly secure child restraints to the seats using the LATCH anchors or a seat belt. Attach the top tether strap when installing a chi ...